CVE-2026-121434

Froxlor 2.3.0 before 2.3.15 contains a missing authorization check in the Certificates.add and Certificates.update API commands, which do not verify whether a domain's certificate is Let's Encrypt-managed. Customers with API access can overwrite the managed certificate and private key with an attacker-chosen pair, which a REBUILD_VHOST task deploys to the webserver, breaking HTTPS and desynchronizing ACME automation.

CVSS v3 5.4 MEDIUM

5.4^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 2.5

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://github.com/froxlor/froxlor/security/advisories/GHSA-ch7m-649m-x7xg
https://www.vulncheck.com/advisories/froxlor-2.3.0-before-2.3.15-authorization-bypass-via-certificates-update-api

Configurations

No configuration.

History

03 Nov 2026, 15:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-11-03 15:17

Updated : 2026-11-03 15:17

NVD link : CVE-2026-121434

Mitre link : CVE-2026-121434

CVE.ORG link : CVE-2026-121434

JSON object : View

Products Affected

No product.

CWE

CWE-862

Missing Authorization

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